Pipe fitting



May 29, 1928.

w. s. DOWS PIPE FITTING Filed March 11, 1925 ATTbk/VEY Patented May 29, 1928.

UNITED STATES PATENT OFFICE.

. wanna o. nows, or noncfins'rnn, msssacnusn'n'a.

run FITTING.

Application m March 11, 1925.. fleriollo. 14,729;

In connecting a radiator to a riser it often occurs that the connection receiving opening of the radiator-is either too hi h or too low to be readily connected to the tting of the riser; furthermore some radiators are wider than others, that is they project outwardly from a wall of the room further than others, and this may increase the difliwhy of securing aradiator to a riserfitting.

Having the above matters in mind the present invention relates to a fittingfor con.- necting a radiator to a riser while it serves traction of the riser, and the construction is such that the fitting, while connected to l the riser, may be raised and lowered to facilitate connecting the fitting to a radiator, and it may also be rotated thru a suflicient angle to bring a laterally extending neck of the fitting into alignment with the portion of the radiator to which it is to be secured. The above and other features of the invention will 'be best understood from the following description, when read in connection with the drawings which illustrate a good, practical form of the invention. In the drawings: H Fig. l is a perspective view showinga portion of a room havinga radiator therein which is connected to its riser in accordance with the present invention. i Fig. 2 is .an enlarged vertical sectional View thru the fitting of Fig; 1.

Fig. 3 is a perspective view ofa sleeve which may be secured to a pipe of the riser to extend into the fitting; and t 1 Fig. 4 is a fra mentary perspective yiew of the upper port on of the fitting of Fig. 2. Referring to t-he drawings, 10 isa r ser that may extend from the basement of a building upwardly thru the different floors to supply a heating fluid to one or more ra- 55 diators upon each floor. The riserlO is usually positioned near one of the walls 11 of also. to take care of the expansion and con the piple 7 the room and supplies the radiator 12, with a heating fluid. In some heating systems theradiators are connected to both. supply and return risers, while in other systems a single riser serves to conduct the heating fluid to and from the radiator, and in the drawingsthe radiator is shown as connected to only one riser, but the fitt ng of the present inventionmay be used to connect a radiator to either a supply or return riser.

As stated, when the riser 10 extends up wardly thru several oranumber of floors, it IS necessary to providemeansfor taking careof the change in length of the riser, due to contraction and expansion. To this end, in accordance with the present invention, the fitting comprises a hollow casing 13 having a relatively long internal bore 14 into which an end of a pipefof the riser may extend a substantialdistance.

A stufling box isprovided for preventing fluid. from escaping frointhe-npper end of the casing 13 around the outer wallof the riser pipe 10 extending therein, and this stufling box serves also to permit relative movement between the casing and pipe 10.

of which isshown as somewhat larger than the outer diameter of the pipe 10., A ring 16 is therefore provided to rest upon the annular fiange 15 and form a seat for f the packing 17 which I ma be forced downwardly against its seat y the gland nut 18.

This construction serves to permit the casing 13 to be raised and lowered relatively to 10 after the parts havewbeen assemble and serves also to take care of the contraction and expansion of the pi e v10.

It has a still further advantage int at it permits any pipe of a riser. to bejremoved or inserted without disassembling the entire riser. This is due to the fact that the bore 14 of the casing is sufiicientl mit the pipelO to be lowereg into the bore iarenough to allow its threaded upper end to be screwed into a threaded soc et of a similar casing 13 at the upper end of the pipe 10, and supported u on the floor above.

The inner bore of the g and nut 18 preferably fits the pipe 10 somewhat loosely to facilitate the removaland installation of a pipe section of the riser in the mannerijust pointed out.

long to per- The casing 13 is provided with a laterally extending neck 19 and in the construction shown this neck has an upturned portion-20 which is externally-threaded. ,ltoften hap-v or loweredjto facilitate the connection of thethreaded end-'20 with the radiator thru the valve" 22 thereof, and means is provided for supporting the casing 13 in di'iferent positions of adjustment. To this end the casing is externally threaded as at 23 and is adapted to receive a correspondingly threaded" nut or sleeve 24. This sleeve is provided with axlaterally extendingflange 25 which rests on the fioor 26 of the room. The nut or sleeve 24' preferably is constructed so that it may be adjusted a substantial distance lengthwise of the casing 13, to support the casing .in various positions of "ertical adjustment relatively to the floor. After the sleeve24 has been adjusted to the desired position it may be secured in this position by one or more set screws 27 carried by the sleeve, and the sleeve may be secured to the floor 26 by screws 28 extending thru the iflange' 25 into thefloor. The sleeve 24 has an annular portion29 which fits a hole in the floor and the sleeve is preferably provided with a shoulder 30 which may rest upon the boards of the lower 'floor to support the fitting in its proper position until'the boards of the upper floor are laid. The lower end of the sleeve 24 extends into the hole in the lower floor and serves to center the sleeve therein.

The lower end of the casing 13 is preferably provided with,a threaded socket 31 adapted to receive the threaded upper end of a pipe. 32 of the riser, the arrangement being such that one end of a pipe of a riser (inthe construction shown, the upper end) is rigidly secured to the casing'13, while the lower end of this'same pipe extends slidably into a second casing 13 'thru a stufiing box such asshown and described. "This construction permits the casing- 13 and the pipe 32 rigidly secured thereto to be raised and lowered as a unit without disturbing the operation of the riser. Some radiators are wider than others that is, they. may extend outwardly from a wall 11 of the room further than others so that the connection receiving opening 21 of some radiators may be spaced further from the wall. 11 than others. :In order that the neck 19. may be readily connected to radiators of different widthsjthe neck is made relatively long, as shown,. and the casing 13 may be rotated to swing; the. neck into alignment with the valve 22 or other connection with which its threaded end 20 is to be secured.

ably secured to the fitting with a sleeve 33 which-may extend.-into the casing 13. This may be desirable where a smoother external surface is desired than that afforded by the pipes of the riser, and makes it easier to 1'e move a section ofthe riser. When the sleeve 33 is employed the pipe 10 will not extend into the fitting, but the sleeve will be'connected by threads to the lower end ofxthe pipe sothat the sleeve will extend thruthe stufiing box' into the fitting. The sleeve 33 is shown as provided with acoller 34 at-its lower end; this collar is preferably permanently secured thereto and is providedto prevent the sleeve from being accidentally pulled out of the stufling box beforethejfitting has been installed in the heating system,

and the bore of the annularfiange'15, as above stated, is made somewhat larger than the diameter of the pipe '10 to permit the sleeve 33 and collar 34 to be inserted within the bore 14 of the casing.

It may be desirable to provide a watertight joint between the fitting supporting base late and thefloor, so that waterupon the flhordue to radiator leakage, washing the floor, or, in case of 'a'fire, will not pass downwardly around the' fitting. This is readily accomplished by placinggraphite paste orthe like on the threads within the collar 24 of'the base plate so that water'will not pass downwardlybetween the-cooperating threads, and a gasket 35 confined between the floor and under face of the flange 25- will prevent water from entering at this point. This construction is' 'articularly'desirable in rooms provided wit tile or other'waterproof floors, as the floorlmaybe madeabsolutely tight.

From the foregoingdescription, it willbe apparent that after the fittingf'has-been secured to a riser, it maybe raised and lowered as desired to facilitatethe connection'of the fitting to a radiator, andlthatthefittin may lie/supportedfromthe floorinits di ferent positions of adjustment by the-base plate or floor flange, formed by thenut or collar 24. "It will 'alsobeseen that thisfitting takes care of the change-inlength: of

the riser, due to expansion and contraction,

and that the fitting may be readily rotated about a verticalaxis thru' a suflicient angle to bring the outer end of theneck 19 into alignment with the iadiator connection to which it is to-be secured.

What 'is claimed is 2- j 1. A pipe fitting for connecting: a radiator tofa riser, comprising-in combinatiomahollow fluid-tight casing adapted to form a connection between two aligned pipes of a riser, a neck extending laterally from the casing and having an upwardly extending end for connection toa radiator,-means forming a slidin connection between the casing and one 0 said pipes'.to'perm1t the casing to be adjusted vertically relatively to the last mentioned pipe while rigidly secured to the other pipe, and a sup 'orting sleeve threaded upon the casing or adjustment lengthwise of the casing and provided with a laterally adapted to rest upon the floor of a building to support the casing.

2. A pipe fitting for connecting a radiator to a riser, comprising in combination, a hollow fluid-tight casing adapted to form a connection between two aligned ipes of a riser, a neck extending laterally rom the casing and having an upturned end portion for attachment to a radiator, meansfor rigidly securing one pipe to thelower end of the casing tosuspend the same from the casing so that thepipe may be raised and lowered with the casing, means forming a sliding connection between the other; pipe and thecasing to permit the casing to be adjusted vertically relatively to the'last mentioned pipe,and a supporting sleeve threaded upon the casing for adjustment lengthwise thereof and provided with a flange pontion adapted to rest on the floor of the building to support the casing in different positions of adjustment and so that the casing may be rotated about the riser as an axis to ali n the outer end of said neck with the raciator connection.

3. A pipe fitting for connecting a radiator to a riser, comprising in combination, a hollow fluid-tight casing adapted to form a connection between two aligned pipes of a riser, a neck extending laterally from the casing and having an upturned end for attachment to a radiator, means for rigidly securing one pipe to the casing to be raised a and lowered with the casing, means forming a sliding connection between the other pipe and the casing to permit the casing to be adjusted vertically relatively to the last mentioned pipe, and a supporting sleeve threaded upon the casing for adjustment lengthwise thereof and provided with a extending flange flange portion adapted to rest on the floor of a l pipe and the casing to permit the casing to be'adjusted vertically relatively to'the last mentioned pipe, a supporting sleeve threaded upon the casing for adjustment lengthwise thereof and provided with a flange portion adapted to rest on the floor of a building to support the casing in dilferent positions of adjustment, and means for looking the sleeve to the casing in its adjusted position. y

5. A pipe fitting for connecting aradiator to a riser, comprising in combination, a

hollow fluid-tight casing adapted to form a connection between two aligned pipes of a riser, a neck extending laterally from the casing and having an upturned end for attachment to a radiator, means for rigidly securing one pipe to the casing to be raised and lowered with the casing, means forming a sliding connection between the other pi e and thejcasin to permit the casin to e adjusted vertically relatively to t e last mentioned pipe, a supporting sleeve threaded upon the casing for adjustment lengthwise thereof and provided with a flange por- -tion adapted to rest on the floor of a building to support the casin in different positions of adjustment, an

a gasket confined between said flange portion and floor to "pre-r vent water upon the floor from passing downwardly through a riser opening in the floor.

In testimony whereof, I have signed my name to this specification.

WALTER G. DOWS. 

